Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Comment Re:833 of These... (Score 1) 40

2000 mile range of a diesel. Probably only 200 to 300 for this POS (I doubt even that but trying to be nice). Electric motors drain batteries super fast under heavy load conditions, and long and even short haul cargo trucks are expected to carry up to 40,000 pounds of cargo. The whole truck including tractor, trailer, and cargo can weigh up to 80,000 pounds. This electric tractor might make it 500 miles on its own. Add the trailer and cargo and likely not even 200 miles. A half hour wasted every 200 miles will bankrupt the trucker. No one will want to hire his/her truck if it wastes that much time.

Comment FFS Tell Us Drain Time With Full Cargo Weight (Score 1) 40

It doesn't matter how fast it charges if it can't drive as far as a diesel with 40,000 pounds of cargo. The heavier the weight, the more toque required, which is the Achilles Heel of electric motors and batteries. They aren't telling us anything if they don't show how far it drive pulling a 40,000 pound cargo on a long trailer. 80,000 pounds altogether. Diesel tractor trailers can drive up to 2000 miles on a full fuel load, depending on tank size. I seriously doubt a Tesla semi can drive even 200 to 300 miles with a full cargo load of 40,000 pounds.

Comment Re:Heat (Score 3, Informative) 53

Infrared are longer wavelengths. Probably too long to be trapped the way they describe. I immediately wondered about microwaves, i.e. radar. But those are way longer waves, so no as well. The reason they can put a mesh screen you can see through in the door of a microwave oven, is because the wavelength of those radio waves (that is really what they are) are so long they can't get through. Finally, black items can radiate heat, you just can't see it. So sure, if it trapped enough visible light, it could be 'converted' to a longer wavelength (infrared) as the fabric tries to shed the extra energy.

Comment Venus (Score 1) 51

Given their size, we should send half a dozen (or whatever the right amount is) SpaceX Starships to Venus with a payload of reflective dust. Dust that can be released around the planet to see the effect it has with respect to cooling the planet.

Comment Just no. Not Power or Heat; Kessler Effect (Score 2) 64

Imagine, a small hits a satellite and the satellite sends out a shitload of shards moving at extremely high speed. And then some of those hit a sky data centre and cause a cascading (Kessler) effect. Of it the meteor hits the much larger data centre directly. We already know we are walking a fine line of losing a significant proportion of satellites if there are collisions.

Or worse, what if some bad player shoots a missile into one of those centres? This would cause orders of magnitude worse results than a simple collision. If a cloud of debris started orbiting, it could knock out a large portion of the world's computing power (assuming most adopted this silly idea). If most of the data centres were put in space and that worst case scenario happened, the whole world would shut down. And if you moved the centres far enough apart in space, they would be so high up the communications lag would have just as bad a consequence.

For shit like this, you have to plan for worst case. It's why they put berms around terrestrial data centres and have enough security to protect a gold repository, just about. Right now, there is no way to protect against a Kessler Syndrome/Effect/Event if it happens.

Comment Subtext: "We don't want you learning how to learn" (Score 1) 43

"You don't need to know how to learn; In fact don't need to know anything. Just ask 'Brother AI', he will tell you everything." [In a soothing big brother voice.]
Keep the masses ignorant and only tell them stuff you want them to hear. It's the next step in making the rich richer, and the poor poorer.
.

Comment Re:Looking put the windows may do the same (Score 1) 14

Way to look like a full on completely ignorant asshole. I bet you think you sounded smart there. Here is an article that gives people some useful information on an important topic, that was not known before. There's nothing stopping you (or anyone else) from taking this thing, which you had no clue about before so couldn't, and digging deeper. In essence fuck off you useless troll. Cancer sucks. Information on fighting it is always welcome.

Comment Re:Interesting (Score 2) 69

I have one chefs knife that is sharp like a razor. I have a stainless steel bowl I make a sanitation solution in (one or two cap fulls of bleach) and throw in a clean small towel or two. The super sharp knife makes sure onions and the like don't squirt unneeded juice, and I can wipe off the blade between food types.

Kosher was created because people didn't know what germs are, and just knew that if you ate certain foods you were more likely to get sick, but didn't know why. And they didn't know that the problem with wood handles on knives was that bits of stuff could get stuck between the steel and wood allowing contamination. So the rabbis just made up a rule and put it in the book that said, unless it is blessed by a rabbi, you can't eat that food or use that type of cooking tool. And then the rabbis would only bless food that was less likely to make you sick. Now we know about germs and raise animals in ways they won't be contaminated (e.g. trichinosis in pigs is almost unheard of now, and we know about things like 'red tide' and other stuff that contaminate shellfish and crustaceans). So Kosher doesn't mean shit anymore. Only people who think there is a god that watches what you eat believes that nonsense now.

Comment Re:Fuck China (Score 1) 136

So the USA puts by tomorrow, 100% tariffs on Chinese goods. That means Americans' buying power with respect to what they can purchase from China, is halved. For all other countries at 50% it is one third. America can't buy as much. Just like the buying power of third world countries. Anyway, China won't care, there are over six billion people in all the other countries outside of China and the USA. And eventually when the American dollar goes low enough, all those countries will switch to using the Euro as the standard. Then the USA will be the banana republic you MAGA types have always wanted. You're number 85.

Slashdot Top Deals

1 Angstrom: measure of computer anxiety = 1000 nail-bytes

Working...